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Finding the Fourth Proportional to 662,639.17, 993,039.17 and 301,928.49

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Solution

The fourth proportional to 662,639.17, 993,039.17 and 301,928.49 is: 452,473.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,639.17 : 993,039.17 = 301,928.49 : x
  2. Step 2: Convert to fraction form
    662,639.17/993,039.17 = 301,928.49/x
  3. Step 3: Cross multiply
    662,639.17x = 993,039.17 × 301,928.49
  4. Step 4: Simplify right side
    662,639.17x = 299,826,817,108.95
  5. Step 5: Solve for x
    x = 299,826,817,108.95/662,639.17
  6. Step 6: Final answer
    x = 452,473.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.